What is Google Penguin Update ???

Hi Friends I'm doing SEO from last six months. But still not now about Panda update and Penguin updates.
I know that panda is older version.
So please give me some information about"Google Penguin Update" What is in this update??

Google penguin launched with the goal of penalizing websites that have used artful techniques to enhance their rankings. In step with the Google blog, penguin is an “important algorithm rule modification targeted at web Spam. The modification can decrease rankings for sites that we have a tendency to believe square measure violating Google’s existing policy.” Google mentions that typical black hat SEO techniques like keyword stuffing, exact match footer links and Failure to vary anchor text of links would get a web site in bother, however less obvious techniques would also cause Penguin to flag your site.

Hey thanks mate for so much information. I like your words.
Please give me some more information in regarding of Penguin. I'm hungry about it. Can I get the daily updates of SEO. What is happening in SEO???